<template>
  <div>
    <!--面包屑导航区-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
    <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
    <el-breadcrumb-item>用户管理</el-breadcrumb-item>
    <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!--卡片视图区-->
    <el-card>
      <!--搜索与添加区-->
      <el-row :gutter="20">
        <el-col :span="8">
           <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList" class="input-with-select">
           <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
           </el-input>
        </el-col>
        <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!--用户列表区-->
      <el-table :data="userlist" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="changeState(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row.id)" size="mini"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            <el-tooltip  effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!--分页区-->
      <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total"
      background>
      </el-pagination>
    </el-card>
    <!--添加用户对话框-->
    <el-dialog
    title="提示"
    :visible.sync="addDialogVisible"
    width="30%" @close="addDialogClosed">
    <!--内容主体-->
    <el-form :model="addForm" :rules="addFormRules"
    ref="addFormRef" label-width="70px">
    <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
    </el-form-item>
    <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password" type="password"></el-input>
    </el-form-item>
    <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
    </el-form-item>
    <el-form-item label="电话" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
    </el-form-item>
    </el-form>
    <!--底部区域-->
    <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
    </span>
    </el-dialog>
    <!--修改用户对话框-->
    <el-dialog
    title="修改信息"
    :visible.sync="editDialogVisible"
    width="50%" @close="edtiDialogClosed">
    <el-form :model="editForm" :rules="editFormRules" ref="editFormRef"
    label-width="70px">
    <el-form-item label="用户名">
    <el-input v-model="editForm.username" disabled></el-input>
    </el-form-item>
    <el-form-item label="邮箱" prop="email">
    <el-input v-model="editForm.email"></el-input>
    </el-form-item>
    <el-form-item label="电话" prop="mobile">
    <el-input v-model="editForm.mobile"></el-input>
    </el-form-item>
    </el-form>
    <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
    </span>
    </el-dialog>
    <!--修改用户角色对话框-->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible"
    width="30%" @close="setRoleDialogClosed">
    <div>
      <p>当前的用户：{{userInfo.username}}</p>
      <p>当前的角色：{{userInfo.role_name}}</p>
      <p>分配新角色：
        <el-select v-model="selectedRoleId" placeholder="请选择">
          <el-option v-for="item in roleslist" :key="item.id" :label="item.roleName" :value="item.id"></el-option>
        </el-select>
      </p>
    </div>
    <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
    </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 自定义邮箱和手机验证规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^[A-Za-z\d]+([-_.][A-Za-z\d]+)*@([A-Za-z\d]+[-.])+[A-Za-z\d]{2,4}$/
      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法邮箱'))
    }
    var checkMobile = (rule, value, cb) => {
      const regEmail = /^[1][3,4,5,7,8][0-9]{9}$/
      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法电话'))
    }
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userlist: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名长度为3-10字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '用户名长度为6-15字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入电话', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制修改用户对话框的显示隐藏
      editDialogVisible: false,
      // 查询到的单条用户数据
      editForm: {},
      // 修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入用户电话', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制修改角色对话框的显示
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 角色列表
      roleslist: [],
      // 已选中的角色id
      selectedRoleId: ''
    }
  },
  mounted() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变的事件
    handleCurrentChange(nowPage) {
      this.queryInfo.pagenum = nowPage
      this.getUserList()
    },
    // 改变用户状态
    async changeState(userinfo) {
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        this.$message.error('更新状态失败！')
      }
      this.$message.success('更新状态成功！')
    },
    // 添加用户对话框关闭事件,重置表单
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 通过验证，可以发起添加请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    async showEditDialog(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 修改对话框的关闭事件
    edtiDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        // 通过验证发起修改请求
        const { data: res } = await this.$http.put('users/' + this.editForm.id, this.editForm)
        if (res.meta.status !== 200) {
          this.$message.error('更新用户信息失败！')
        }
        this.editDialogVisible = false
        this.getUserList()
        this.$message.success('更新用户信息成功！')
      })
    },
    // 根据id值删除用户
    async removeUserById(id) {
      // 弹框询问是否删除
      const confirmresult = await this.$confirm('此操作将会永久删除该用户，是否继续？', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // 如果用户确定删除则返回字符串‘confirm’,取消则返回字符串‘cancel’
      if (confirmresult !== 'confirm') {
        return this.$message.info('已取消删除操作')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      // 需要把页码重置为1
      this.queryInfo.pagenum = 1
      this.getUserList()
      return this.$message.success('删除用户成功')
    },
    // 展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo
      // 获取所有的角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.roleslist = res.data
      this.setRoleDialogVisible = true
    },
    // 点击按钮分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>

</style>
